Troll is a research station located at Jutulsessen, 235 kilometers (146 mi) from the coast in the eastern part of Princess Martha Coast in Queen Maud Land, Antarctica. It is Norway's only all-year research station in Antarctica, and is supplemented by the summer-only station Tor. Troll is operated by the Norwegian Polar Institute and also features facilities for the Norwegian Meteorological Institute, the Norwegian Institute for Air Research.